1
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Chang YC, Arnould B, Heemstra JM, Moeller KD. Developing Microelectrode Arrays for the Point-of-Care Multiplex Detection of Metabolites. Anal Chem 2024; 96:14571-14580. [PMID: 39183484 DOI: 10.1021/acs.analchem.4c02978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/27/2024]
Abstract
DNA-aptamer-functionalized electrode arrays can provide an intriguing method for detecting pathogen-derived exometabolites. This work addresses the limitations of previous aptamer-based pathogen detection methods by introducing a novel surface design that bridges the gap between initial efforts in this area and the demands of a point-of-care device. Specifically, the use of a diblock copolymer coating on a high-density microelectrode array and Cu-mediated cross coupling reactions that allow for the exclusive functionalization of that coating by any electrode or set of electrodes in the array provides a device that is stable for 1 year and compatible with the multiplex detection of small-molecule targets. The new chemistry developed allows one to take advantage of a large number of electrodes in the array with one experiment described herein capitalizing on the use of 960 individually addressable electrodes.
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Affiliation(s)
- Yu-Chia Chang
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Benoit Arnould
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Jennifer M Heemstra
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Kevin D Moeller
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri 63130, United States
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2
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Chen J, Xia F, Ding X, Zhang D. Universal Covalent Grafting Strategy of an Aptamer on a Carbon Fiber Microelectrode for Selective Determination of Dopamine In Vivo. Anal Chem 2024; 96:10322-10331. [PMID: 38801718 DOI: 10.1021/acs.analchem.4c01167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
The chemical information on brain science provided by electrochemical sensors is critical for understanding brain chemistry during physiological and pathological processes. A major challenge is the selectivity of electrochemical sensors in vivo. This work developed a universal covalent grafting strategy of an aptamer on a carbon fiber microelectrode (CFE) for selective determination of dopamine in vivo. The universal strategy was proposed by oxidizing poly(tannic acid) (pTA) to form an oxidized state (pTAox) and then coupling a nucleophilic sulfhydryl molecule of the dopamine-binding mercapto-aptamer with the o-quinone moiety of pTAox based on click chemistry for the interfacial functionalization of the CFE surface. It was found that the universal strategy proposed could efficiently graft the aptamer on a glassy carbon electrode, which was verified by using electroactive 6-(ferrocenyl) hexanethiol as a redox reporter. The amperometric method using a fabricated aptasensor for the determination of dopamine was developed. The linear range of the aptasensor for the determination of dopamine was 0.2-20 μM with a sensitivity of 0.09 nA/μM and a limit of detection of 88 nM (S/N = 3). The developed method has high selectivity originating from the specific recognition of the aptamer in concert with the cation-selective action of pTA and could be easily applicable to probe dopamine dynamics in the brain. Furthermore, complex vesicle fusion modes were first observed at the animal level. This work demonstrated that the covalently grafted immobilization strategy proposed is promising and could be extended to the in vivo analysis of other neurochemicals.
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Affiliation(s)
- Jiatao Chen
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, P. R. China
| | - Fuyun Xia
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, P. R. China
| | - Xiuting Ding
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, P. R. China
| | - Dongdong Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, P. R. China
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3
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Huang A, Krueger R, Moeller KD. Microelectrode Arrays, Electrocatalysis, and the Need for Proper Characterization. ChemElectroChem 2023; 10:e202300457. [PMID: 38450252 PMCID: PMC10914339 DOI: 10.1002/celc.202300457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Indexed: 03/08/2024]
Abstract
Indirect electrochemical methods are a powerful tool for synthetic chemistry because they allow for the optimization of chemical selectivity in a reaction while maintaining the advantages of electrochemistry in terms of sustainability. Recently, we have found that such methods provide a handle for not only the synthesis of complex molecules, but also the construction of complex, addressable molecular surfaces. In this effort, the indirect electrochemical methods enable the placement or synthesis of molecules by any electrode or set of electrodes in a microelectrode array. The success of these surface-based reactions are typically evaluated with the use of fluorescence labelling studies. However, these fluorescence-based evaluations can be misleading. While they are excellent for determining that a reaction has occurred in a site-selective fashion on an array, they do not provide information on whether that reaction is the one desired or how well it worked. We describe here how the use of a "safety-catch" linker strategy allows for a more accurate assessment of reaction quality on an array, and then use that capability to illustrate how the use of transition metal mediated cross-coupling reactions on an array prevent unwanted background reactions that can occur on a polymer-coated electrode surface. The method enables a unique level of quality control for array-based transformations.
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Affiliation(s)
- Albert Huang
- Washington University in Saint Louis, Saint Louis, Missouri 63130, United States
| | - Ruby Krueger
- Washington University in Saint Louis, Saint Louis, Missouri 63130, United States
| | - Kevin D. Moeller
- Washington University in Saint Louis, Saint Louis, Missouri 63130, United States
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4
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Li ZC, Li W, Wang R, Wang DX, Tang AN, Wang XP, Gao XP, Zhao GM, Kong DM. Lignin-based covalent organic polymers with improved crystallinity for non-targeted analysis of chemical hazards in food samples. JOURNAL OF HAZARDOUS MATERIALS 2023; 448:130821. [PMID: 36709736 DOI: 10.1016/j.jhazmat.2023.130821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 01/16/2023] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
Lignin, the most abundant source of renewable aromatic compounds derived from natural lignocellulosic biomass, has great potential for various applications as green materials due to its abundant active groups. However, it is still challenging to quickly construct green polymers with a certain crystallinity by utilizing lignin as a building block. Herein, new green lignin-based covalent organic polymers (LIGOPD-COPs) were one-pot fabricated with water as the reaction solvent and natural lignin as the raw material. Furthermore, by using paraformaldehyde as a protector and modulator, the LIGOPD-COPs prepared under optimized conditions displayed better crystallinity than reported lignin-based polymers, demonstrating the feasibility of preparing lignin-based polymers with improved crystallinity. The improved crystallinity confers LIGOPD-COPs with enhanced application performance, which was demonstrated by their excellent performances in sample treatment of non-targeted food safety analysis. Under optimized conditions, phytochromes, the main interfering matrices, were almost completely removed from different phytochromes-rich vegetables by LIGOPD-COPs, accompanied by "full recovery" of 90 chemical hazards. Green, low-cost, and reusable properties, together with improved crystallinity, will accelerate the industrialization and marketization of lignin-based COPs, and promote their applications in many fields.
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Affiliation(s)
- Zhan-Chao Li
- Henan Key Laboratory of Meat Processing and Quality Safety Control, College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, People's Republic of China; State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Centre for Analytical Sciences, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Wei Li
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Centre for Analytical Sciences, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China.
| | - Rui Wang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Centre for Analytical Sciences, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Dong-Xia Wang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Centre for Analytical Sciences, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - An-Na Tang
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Centre for Analytical Sciences, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Xiao-Peng Wang
- Henan Key Laboratory of Meat Processing and Quality Safety Control, College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, People's Republic of China
| | - Xiao-Ping Gao
- Henan Key Laboratory of Meat Processing and Quality Safety Control, College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, People's Republic of China
| | - Gai-Ming Zhao
- Henan Key Laboratory of Meat Processing and Quality Safety Control, College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450002, People's Republic of China
| | - De-Ming Kong
- State Key Laboratory of Medicinal Chemical Biology, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Research Centre for Analytical Sciences, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China.
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5
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Karbelkar A, Ahlmark R, Zhou X, Austin K, Fan G, Yang VY, Furst A. Carbon Electrode-Based Biosensing Enabled by Biocompatible Surface Modification with DNA and Proteins. Bioconjug Chem 2023; 34:358-365. [PMID: 36633230 DOI: 10.1021/acs.bioconjchem.2c00542] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Modification of electrodes with biomolecules is an essential first step for the development of bioelectrochemical systems, which are used in a variety of applications ranging from sensors to fuel cells. Gold is often used because of its ease of modification with thiolated biomolecules, but carbon screen-printed electrodes (SPEs) are gaining popularity due to their low cost and fabrication from abundant resources. However, their effective modification with biomolecules remains a challenge; the majority of work to-date relies on nonspecific adhesion or broad amide bond formation to chemical handles on the electrode surface. By combining facile electrochemical modification to add an aniline handle to electrodes with a specific and biocompatible oxidative coupling reaction, we can readily modify carbon electrodes with a variety of biomolecules. Importantly, both proteins and DNA maintain bioactive conformations following coupling. We have then used biomolecule-modified electrodes to generate microbial monolayers through DNA-directed immobilization. This work provides an easy, general strategy to modify inexpensive carbon electrodes, significantly expanding their potential as bioelectrochemical systems.
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Affiliation(s)
- Amruta Karbelkar
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
| | - Rachel Ahlmark
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
| | - Xingcheng Zhou
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
| | - Katherine Austin
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
| | - Gang Fan
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
| | - Victoria Y Yang
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
| | - Ariel Furst
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States.,Center for Environmental Health Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts02139, United States
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6
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Li X, Jin Y, Zhu F, Liu R, Jiang Y, Jiang Y, Mao L. Electrochemical Conjugation of Aptamers on a Carbon Fiber Microelectrode Enables Highly Stable and Selective In Vivo Neurosensing. Angew Chem Int Ed Engl 2022; 61:e202208121. [DOI: 10.1002/anie.202208121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Xin Li
- College of Chemistry Beijing Normal University Beijing 100875 China
| | - Ying Jin
- College of Chemistry Beijing Normal University Beijing 100875 China
| | - Fenghui Zhu
- College of Chemistry Beijing Normal University Beijing 100875 China
| | - Ran Liu
- College of Chemistry Beijing Normal University Beijing 100875 China
| | - Yan Jiang
- College of Chemistry Beijing Normal University Beijing 100875 China
| | - Ying Jiang
- College of Chemistry Beijing Normal University Beijing 100875 China
| | - Lanqun Mao
- College of Chemistry Beijing Normal University Beijing 100875 China
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7
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Li X, Jin Y, Zhu F, Liu R, Jiang Y, Jiang Y, Mao L. Electrochemical Conjugation of Aptamers on Carbon Fiber Microelectrode Enables Highly Stable and Selective In Vivo Neurosensing. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xin Li
- Beijing Normal University College of Chemistry CHINA
| | - Ying Jin
- Beijing Normal University College of Chemistry CHINA
| | - Fenghui Zhu
- Beijing Normal University College of Chemistry CHINA
| | - Ran Liu
- Beijing Normal University College of Chemistry CHINA
| | - Yan Jiang
- Beijing Normal University College of Chemistry CHINA
| | - Ying Jiang
- Beijing Normal University College of Chemistry CHINA
| | - Lanqun Mao
- Beijing Normal University College of Chemistry No.19, Xinjiekouwai St, Haidian District 100875 Beijing CHINA
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8
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Maza J, García-Almedina DM, Boike LE, Hamlish NX, Nomura DK, Francis MB. Tyrosinase-Mediated Synthesis of Nanobody-Cell Conjugates. ACS CENTRAL SCIENCE 2022; 8:955-962. [PMID: 35912347 PMCID: PMC9335918 DOI: 10.1021/acscentsci.1c01265] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
A convenient enzymatic strategy is reported for the modification of cell surfaces. Using a tyrosinase enzyme isolated from Agaricus bisporus, unique tyrosine residues introduced at the C-termini of nanobodies can be site-selectively oxidized to reactive o-quinones. These reactive intermediates undergo rapid modification with nucleophilic thiol, amine, and imidazole residues present on cell surfaces, producing novel nanobody-cell conjugates that display targeted antigen binding. We extend this approach toward the synthesis of nanobody-NK cell conjugates for targeted immunotherapy applications. The resulting NK cell conjugates exhibit targeted cell binding and elicit targeted cell death.
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Affiliation(s)
- Johnathan
C. Maza
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | | | - Lydia E. Boike
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
- Novartis-Berkeley
Center for Proteomics and Chemistry Technologies, Cambridge, Massachusetts 02139, United States
| | - Noah X. Hamlish
- Department
of Molecular and Cell Biology, University
of California, Berkeley, Berkeley, California 94720, United States
| | - Daniel K. Nomura
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
- Novartis-Berkeley
Center for Proteomics and Chemistry Technologies, Cambridge, Massachusetts 02139, United States
- Department
of Molecular and Cell Biology, University
of California, Berkeley, Berkeley, California 94720, United States
- Department
of Nutritional Sciences and Toxicology, University of California, Berkeley, Berkeley, California 94720, United States
- Innovative
Genomics Institute, Berkeley, California 94720, United States
| | - Matthew B. Francis
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
- Materials
Sciences Division, Lawrence Berkeley National
Laboratories, Berkeley, California 94720,United States
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9
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Smolyaninov IV, Burmistrova DA, Arsenyev MV, Polovinkina MA, Pomortseva NP, Fukin GK, Poddel’sky AI, Berberova NT. Synthesis and Antioxidant Activity of New Catechol Thioethers with the Methylene Linker. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27103169. [PMID: 35630646 PMCID: PMC9144179 DOI: 10.3390/molecules27103169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/13/2022] [Accepted: 05/14/2022] [Indexed: 11/16/2022]
Abstract
Novel catechol thio-ethers with different heterocyclic substituents at sulfur atom were prepared by reacting 3,5-di-tert-butyl-6-methoxymethylcatechol with functionalized thiols under acidic conditions. A common feature of compounds is a methylene bridge between the catechol ring and thioether group. Two catechols with the thio-ether group, bound directly to the catechol ring, were also considered to assess the effect of the methylene linker on the antioxidant properties. The crystal structures of thio-ethers with benzo-thiazole moieties were established by single-crystal X-ray analysis. The radical scavenging and antioxidant activities were determined using 2,2′-diphenyl-1-picrylhydrazyl radical test, ABTS∙+, CUPRAC (TEAC) assays, the reaction with superoxide radical anion generated by xanthine oxidase (NBT assay), the oxidative damage of the DNA, and the process of lipid peroxidation of rat liver (Wistar) homogenates in vitro. Most catechol-thioethers exhibit the antioxidant effect, which varies from mild to moderate depending on the model system. The dual anti/prooxidant activity characterizes compounds with adamantyl or thio-phenol substituent at the sulfur atom. Catechol thio-ethers containing heterocyclic groups (thiazole, thiazoline, benzo-thiazole, benzo-xazole) can be considered effective antioxidants with cytoprotective properties. These compounds can protect molecules of DNA and lipids from the different radical species.
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Affiliation(s)
- Ivan V. Smolyaninov
- Department of Chemistry, Astrakhan State Technical University, 16 Tatisheva Str., 414056 Astrakhan, Russia; (D.A.B.); (N.P.P.); (N.T.B.)
- Correspondence: (I.V.S.); (A.I.P.)
| | - Daria A. Burmistrova
- Department of Chemistry, Astrakhan State Technical University, 16 Tatisheva Str., 414056 Astrakhan, Russia; (D.A.B.); (N.P.P.); (N.T.B.)
| | - Maxim V. Arsenyev
- G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, 49 Tropinina Str., 603137 Nizhny Novgorod, Russia; (M.V.A.); (G.K.F.)
| | - Maria A. Polovinkina
- Toxicology Research Group of Southern Scientific Centre of Russian Academy of Science, 41 Chekhova Str., 344006 Rostov-on-Don, Russia;
| | - Nadezhda P. Pomortseva
- Department of Chemistry, Astrakhan State Technical University, 16 Tatisheva Str., 414056 Astrakhan, Russia; (D.A.B.); (N.P.P.); (N.T.B.)
| | - Georgy K. Fukin
- G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, 49 Tropinina Str., 603137 Nizhny Novgorod, Russia; (M.V.A.); (G.K.F.)
| | - Andrey I. Poddel’sky
- G.A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, 49 Tropinina Str., 603137 Nizhny Novgorod, Russia; (M.V.A.); (G.K.F.)
- Correspondence: (I.V.S.); (A.I.P.)
| | - Nadezhda T. Berberova
- Department of Chemistry, Astrakhan State Technical University, 16 Tatisheva Str., 414056 Astrakhan, Russia; (D.A.B.); (N.P.P.); (N.T.B.)
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10
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Smolyaninov IV, Burmistrova DA, Arsenyev MV, Almyasheva NR, Ivanova ES, Smolyaninova SA, Pashchenko KP, Poddel'sky AI, Berberova NT. Catechol‐ and Phenol‐Containing Thio‐Schiff Bases: Synthesis, Electrochemical Properties and Biological Evaluation. ChemistrySelect 2021. [DOI: 10.1002/slct.202102246] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ivan V. Smolyaninov
- Department of Chemistry Astrakhan State Technical University 16 Tatischeva str. Astrakhan 414056 Russia
| | - Daria A. Burmistrova
- Department of Chemistry Astrakhan State Technical University 16 Tatischeva str. Astrakhan 414056 Russia
| | - Maxim V. Arsenyev
- G.A. Razuvaev Institute of Organometallic Chemistry Russian Academy of Sciences 49 Tropinina str. 603137 Nizhny Novgorod Russia
| | - Nailya R. Almyasheva
- Gause Institute of New Antibiotics 11/1 Bolshaya Pirogovskaya str. Moscow 119021 Russian Federation
| | - Ekaterina S. Ivanova
- Blokhin National Medical Research Center of Oncology 24 Kashirskoye Shosse Moscow 115478 Russian Federation
| | - Susanna A. Smolyaninova
- Department of Chemistry Astrakhan State Technical University 16 Tatischeva str. Astrakhan 414056 Russia
| | - Konstantin P. Pashchenko
- Department of Chemistry Astrakhan State Technical University 16 Tatischeva str. Astrakhan 414056 Russia
| | - Andrey I. Poddel'sky
- G.A. Razuvaev Institute of Organometallic Chemistry Russian Academy of Sciences 49 Tropinina str. 603137 Nizhny Novgorod Russia
| | - Nadezhda T. Berberova
- Department of Chemistry Astrakhan State Technical University 16 Tatischeva str. Astrakhan 414056 Russia
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11
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Castle LM, Schuh DA, Reynolds EE, Furst AL. Electrochemical Sensors to Detect Bacterial Foodborne Pathogens. ACS Sens 2021; 6:1717-1730. [PMID: 33955227 DOI: 10.1021/acssensors.1c00481] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Bacterial foodborne pathogens cause millions of illnesses each year and disproportionately impact those in developing countries. To combat these diseases and their spread, effective monitoring of foodborne pathogens is needed. Technologies to detect these microbes must be deployable at the point-of-contamination, often in nonideal environments. Electrochemical sensors are uniquely suited for field-deployable monitoring, as they are quantitative, rapid, and do not require expensive instrumentation. When combined with the inherent recognition capabilities of biomolecules, electrochemistry is unmatched for quantitative biological measurements with minimal equipment requirements. This Review is centered on recent advances in electrochemical sensors for the detection of bacterial foodborne pathogens with a specific emphasis on field-deployable platforms, as this is a key requirement of any technology that could effectively halt the spread of foodborne diseases. Innovative electrochemical sensing strategies are highlighted that demonstrate the ability of these technologies to achieve high sensitivity and large detection ranges with rapid readout. Sensing strategies are categorized on the basis of whether they incorporate biological pretreatments or biorecognition elements, and their key advantages and disadvantages are summarized. As this class of sensors continues to mature, methods to incorporate device specificity and to detect targets from complex solutions will enable the translation of these platforms from laboratory prototypes to real-world implementation.
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Affiliation(s)
- Lauren M. Castle
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Daena A. Schuh
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Erin E. Reynolds
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Ariel L. Furst
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Center for Environmental Health Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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12
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Huang Y, Meng L, Nie Q, Zhou Y, Chen L, Yang S, Fung YME, Li X, Huang C, Cao Y, Li Y, Li X. Selection of DNA-encoded chemical libraries against endogenous membrane proteins on live cells. Nat Chem 2020; 13:77-88. [PMID: 33349694 DOI: 10.1038/s41557-020-00605-x] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Accepted: 11/10/2020] [Indexed: 12/30/2022]
Abstract
Membrane proteins on the cell surface perform a myriad of biological functions; however, ligand discovery for membrane proteins is highly challenging, because a natural cellular environment is often necessary to maintain protein structure and function. DNA-encoded chemical libraries (DELs) have emerged as a powerful technology for ligand discovery, but they are mainly limited to purified proteins. Here we report a method that can specifically label membrane proteins with a DNA tag, and thereby enable target-specific DEL selections against endogenous membrane proteins on live cells without overexpression or any other genetic manipulation. We demonstrate the generality and performance of this method by screening a 30.42-million-compound DEL against the folate receptor, carbonic anhydrase 12 and the epidermal growth factor receptor on live cells, and identify and validate a series of novel ligands for these targets. Given the high therapeutic significance of membrane proteins and their intractability to traditional high-throughput screening approaches, this method has the potential to facilitate membrane-protein-based drug discovery by harnessing the power of DEL.
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Affiliation(s)
- Yiran Huang
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Hong Kong SAR, China
| | - Ling Meng
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Hong Kong SAR, China
| | - Qigui Nie
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing, China
| | - Yu Zhou
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Hong Kong SAR, China
| | - Langdong Chen
- School of Pharmacy, Second Military Medical University, Shanghai, China
| | - Shilian Yang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing, China
| | - Yi Man Eva Fung
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Hong Kong SAR, China
| | - Xiaomeng Li
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Hong Kong SAR, China
| | - Cen Huang
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing, China
| | - Yan Cao
- School of Pharmacy, Second Military Medical University, Shanghai, China.
| | - Yizhou Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing, China. .,Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China.
| | - Xiaoyu Li
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Hong Kong SAR, China. .,Laboratory for Synthetic Chemistry and Chemical Biology of Health@InnoHK, Hong Kong SAR, China.
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13
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Hou H, Jin Y, Wei H, Ji W, Xue Y, Hu J, Zhang M, Jiang Y, Mao L. A Generalizable and Noncovalent Strategy for Interfacing Aptamers with a Microelectrode for the Selective Sensing of Neurotransmitters In Vivo. Angew Chem Int Ed Engl 2020; 59:18996-19000. [PMID: 32662903 DOI: 10.1002/anie.202008284] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Indexed: 12/15/2022]
Abstract
The selective sensing of neurochemicals is essential for understanding the chemical basis of brain function and pathology. Interfacing the excellent recognition features of aptamers with in vivo compatible carbon fiber microelectrode (CFE)-based electroanalytical systems offers a plausible means to achieve this end. However, this is challenging in terms of coupling chemistry, stability, and versatility. Here, we present a new interfacial functionalization strategy based on the assembly of aptamer cholesterol amphiphiles (aptCAs) on the alkyl chain-functionalized CFE. The noncovalent cholesterol-alkyl chain interactions effectively immobilize aptamers onto the CFE surface, allowing the generation of a highly selective system for probing neurochemical dynamics in living systems and opening up a vast array of new opportunities for designing in vivo sensors for exploring brain chemistry.
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Affiliation(s)
- Hanfeng Hou
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Ying Jin
- College of Chemistry, Beijing Normal University, Beijing, 100875, China
| | - Huan Wei
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Wenliang Ji
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Yifei Xue
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jingbo Hu
- College of Chemistry, Beijing Normal University, Beijing, 100875, China
| | - Meining Zhang
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Ying Jiang
- College of Chemistry, Beijing Normal University, Beijing, 100875, China
| | - Lanqun Mao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
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14
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Hou H, Jin Y, Wei H, Ji W, Xue Y, Hu J, Zhang M, Jiang Y, Mao L. A Generalizable and Noncovalent Strategy for Interfacing Aptamers with a Microelectrode for the Selective Sensing of Neurotransmitters In Vivo. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008284] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Hanfeng Hou
- Department of Chemistry Renmin University of China Beijing 100872 China
| | - Ying Jin
- College of Chemistry Beijing Normal University Beijing 100875 China
| | - Huan Wei
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Wenliang Ji
- Department of Chemistry Renmin University of China Beijing 100872 China
| | - Yifei Xue
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Jingbo Hu
- College of Chemistry Beijing Normal University Beijing 100875 China
| | - Meining Zhang
- Department of Chemistry Renmin University of China Beijing 100872 China
| | - Ying Jiang
- College of Chemistry Beijing Normal University Beijing 100875 China
| | - Lanqun Mao
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
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15
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Li W, Jiang HX, Geng Y, Wang XH, Gao RZ, Tang AN, Kong DM. Facile Removal of Phytochromes and Efficient Recovery of Pesticides Using Heteropore Covalent Organic Framework-Based Magnetic Nanospheres and Electrospun Films. ACS APPLIED MATERIALS & INTERFACES 2020; 12:20922-20932. [PMID: 32297732 DOI: 10.1021/acsami.0c01608] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nontargeted analysis of food safety requires selective removal of interference matrices and highly efficient recovery of chemical hazards. Porous materials such as covalent organic frameworks (COFs) show great promise in selective adsorption of matrix molecules via size selectivity. Considering the complexity of interference matrices, we prepared crystalline heteropore COFs whose two kinds of pores have comparable sizes to those of several common phytochromes, main interference matrices in vegetable sample analysis. By controlling the growth of COFs on the surface of Fe3O4 nanoparticles or by utilizing a facile co-electrospinning method, heteropore COF-based magnetic nanospheres or electrospun nanofiber films were prepared, respectively. Both the nanospheres and the films maintain the dual-pore structures of COFs and show good stability and excellent reusability. Via simple magnetic separation or immersion operation, respectively, they were successfully used for the complete removal of phytochromes and highly efficient recovery of 15 pesticides from the extracts of four vegetable samples, and the recoveries are in the range of 83.10-114.00 and 60.52-107.35%, respectively. Film-based immersion operation gives better sample pretreatment performance than the film-based filtration one. This work highlights the great application potentials of heteropore COFs in sample pretreatment for nontargeted analysis, thus opening up a new way to achieve high-performance sample preparation in many fields such as food safety analysis, environment monitoring, and so on.
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Affiliation(s)
- Wei Li
- Tianjin Key Laboratory of Biosensing and Molecular Recognition, Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Hong-Xin Jiang
- Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, People's Republic of China
- Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture, Tianjin 300191, People's Republic of China
- Laboratory of Environmental Factors Risk Assessment of Agro-Product Quality Safety, Ministry of Agriculture, Tianjin 300191, People's Republic of China
| | - Yue Geng
- Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjin 300191, People's Republic of China
- Key Laboratory for Environmental Factors Control of Agro-product Quality Safety, Ministry of Agriculture, Tianjin 300191, People's Republic of China
- Laboratory of Environmental Factors Risk Assessment of Agro-Product Quality Safety, Ministry of Agriculture, Tianjin 300191, People's Republic of China
| | - Xiao-Han Wang
- Tianjin Key Laboratory of Biosensing and Molecular Recognition, Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Rong-Zhi Gao
- Tianjin Key Laboratory of Biosensing and Molecular Recognition, Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - An-Na Tang
- Tianjin Key Laboratory of Biosensing and Molecular Recognition, Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - De-Ming Kong
- Tianjin Key Laboratory of Biosensing and Molecular Recognition, Key Laboratory of Functional Polymer Materials, Ministry of Education, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
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16
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Marmelstein AM, Lobba MJ, Mogilevsky CS, Maza JC, Brauer DD, Francis MB. Tyrosinase-Mediated Oxidative Coupling of Tyrosine Tags on Peptides and Proteins. J Am Chem Soc 2020; 142:5078-5086. [PMID: 32093466 DOI: 10.1021/jacs.9b12002] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Oxidative coupling (OC) through o-quinone intermediates has been established as an efficient and site-selective way to modify protein N-termini and the unnatural amino acid p-aminophenylalanine (paF). Recently, we reported that the tyrosinase-mediated oxidation of phenol-tagged cargo molecules is a particularly convenient method of generating o-quinones in situ. The coupling partners can be easily prepared and stored, the reaction takes place under mild conditions (phosphate buffer, pH 6.5, 4 to 23 °C), and dissolved oxygen is the only oxidant required. Here, we show an important extension of this chemistry for the activation of tyrosine residues that project into solution from the N or C-termini of peptide and protein substrates. Generating the o-quinone electrophiles from tyrosine allows greater flexibility in choosing the nucleophilic coupling partner and expands the scope of the reaction to include C-terminal positions. We also introduce a new bacterial tyrosinase enzyme that shows improved activation for some tyrosine substrates. The efficacy of several secondary amines and aniline derivatives was evaluated in the coupling reactions, providing important information for coupling partner design. This strategy was used to modify the C-termini of an antibody scFv construct and of Protein L, a human IgG kappa light chain binding protein. The use of the modified proteins as immunolabeling agents was also demonstrated.
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Affiliation(s)
- Alan M Marmelstein
- Department of Chemistry, University of California at Berkeley, Berkeley, California 94720, United States
| | - Marco J Lobba
- Department of Chemistry, University of California at Berkeley, Berkeley, California 94720, United States
| | - Casey S Mogilevsky
- Department of Chemistry, University of California at Berkeley, Berkeley, California 94720, United States
| | - Johnathan C Maza
- Department of Chemistry, University of California at Berkeley, Berkeley, California 94720, United States
| | - Daniel D Brauer
- Department of Chemistry, University of California at Berkeley, Berkeley, California 94720, United States
| | - Matthew B Francis
- Department of Chemistry, University of California at Berkeley, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratories, Berkeley, California 94720, United States
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17
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Bhuiyan MSA, Roland JD, Liu B, Reaume M, Zhang Z, Kelley JD, Lee BP. In Situ Deactivation of Catechol-Containing Adhesive Using Electrochemistry. J Am Chem Soc 2020; 142:4631-4638. [PMID: 32046478 PMCID: PMC7068691 DOI: 10.1021/jacs.9b11266] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Marine mussels secret catechol-containing adhesive proteins that enable these organisms to bind to various surfaces underwater. Synthetic mimics of these proteins have been created to function as adhesives and coatings for a wide range of applications. Here, we demonstrated the use of in situ electrical field stimulation to deactivate the adhesive property of catechol-containing adhesive that is in direct contact with a surface. Johnson-Kendall-Roberts (JKR) contact mechanics test was performed using a titanium (Ti) sphere in the presence of a pH 7.5 aqueous buffer. The Ti sphere also served as a conductive electrode for applying electricity to the adhesive, while a platinum (Pt) wire served as the counter electrode. Work of adhesion (Wadh) decreased with increased levels of applied voltage and current, exposure time to the applied electricity, and salt concentration of the interfacial buffer. Application of 9 V for 1 min completely deactivated the adhesive. UV-vis diffuse reflectance spectra and tracking of catechol oxidation byproduct, hydrogen peroxide, confirmed that catechol was oxidized as a result of applied electricity. Contact mechanics testing further confirmed that the Young's modulus of the adhesive increased by nearly 4 folds at the interface as a result of oxidative cross-linking, even though the modulus of the bulk of the adhesive was unaffected by applied electricity. The accumulation of hydroxyl ions near the cathode increased the local solution pH, which promoted oxidation-induced cross-linking of catechol and subsequently decreased its adhesive property. Tuning adhesive properties through in situ electrochemical oxidation provides on-demand control over the adhesive, which will potentially add another dimension in designing synthetic mimics of mussel adhesive proteins.
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Affiliation(s)
- Md. Saleh Akram Bhuiyan
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI-49931, USA
| | - James D. Roland
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI-49931, USA
| | - Bo Liu
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI-49931, USA
| | - Max Reaume
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI-49931, USA
| | - Zhongtian Zhang
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI-49931, USA
| | - Jonathan D. Kelley
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI-49931, USA
| | - Bruce P. Lee
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI-49931, USA
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18
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Furst AL, Klass SH, Francis MB. DNA Hybridization to Control Cellular Interactions. Trends Biochem Sci 2019; 44:342-350. [DOI: 10.1016/j.tibs.2018.10.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 10/04/2018] [Accepted: 10/10/2018] [Indexed: 12/28/2022]
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19
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Xu W, Huang Z, Ji X, Lumb JP. Catalytic Aerobic Cross-Dehydrogenative Coupling of Phenols and Catechols. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04443] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Wenbo Xu
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Normal University, Jinan 250014, China
| | - Zheng Huang
- Department of Chemistry, McGill University, Montreal, QC H3A 0B8, Canada
| | - Xiang Ji
- Department of Chemistry, McGill University, Montreal, QC H3A 0B8, Canada
| | - Jean-Philip Lumb
- Department of Chemistry, McGill University, Montreal, QC H3A 0B8, Canada
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20
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Conibear AC, Muttenthaler M. Advancing the Frontiers of Chemical Protein Synthesis-The 7 th CPS Meeting, Haifa, Israel. Cell Chem Biol 2019; 25:247-254. [PMID: 29547714 DOI: 10.1016/j.chembiol.2018.03.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The 7th Chemical Protein Synthesis Meeting took place in September 2017 in Haifa, Israel, bringing together 100 scientists from 11 countries. The cutting-edge scientific program included new synthetic strategies and ligation auxiliaries, novel insights into protein signaling and post-translational modifications, and a range of promising therapeutic applications.
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Affiliation(s)
- Anne C Conibear
- Institute of Biological Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria
| | - Markus Muttenthaler
- Institute of Biological Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria; Institute for Molecular Bioscience, The University of Queensland, 4072 Brisbane, Australia.
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21
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Universal method for direct bioconjugation of electrode surfaces by fast enzymatic polymerization. Biosens Bioelectron 2019; 127:50-56. [PMID: 30592993 DOI: 10.1016/j.bios.2018.12.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2018] [Revised: 11/23/2018] [Accepted: 12/10/2018] [Indexed: 12/13/2022]
Abstract
We report HRP-catalyzed polymerization of Tannic acid (TA) and application of the poly (Tannic acid) (p(TA)) as a versatile platform for covalent immobilization of biomolecules on various electrode surfaces based on electrochemical oxidation of the p(TA) and subsequent oxidative coupling reactions with the biomolecules. We also used this method for capturing cancer cells through a linker molecule, folic acid (FA). Furthermore, we have demonstrated that enhanced electrocatalytic activity of the p(TA)-modified surface could be used for simultaneous electrochemical determination of biologically important electroactive molecules such as ascorbic acid (AA), dopamine (DA), and uric acid (UA). This HRP-catalyzed polymerization of TA and p(TA)-mediated surface modification method can provide a simple and new framework to construct multifunctional platforms for covalent attachment of biomolecules and development of sensitive electrochemical sensing devices.
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22
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Maza JC, Bader DLV, Xiao L, Marmelstein AM, Brauer DD, ElSohly AM, Smith MJ, Krska SW, Parish CA, Francis MB. Enzymatic Modification of N-Terminal Proline Residues Using Phenol Derivatives. J Am Chem Soc 2019; 141:3885-3892. [DOI: 10.1021/jacs.8b10845] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Johnathan C. Maza
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Daniel L. V. Bader
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Lifeng Xiao
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Alan M. Marmelstein
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Daniel D. Brauer
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Adel M. ElSohly
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Matthew J. Smith
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Shane W. Krska
- Discovery Chemistry, Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
| | - Craig A. Parish
- Discovery Chemistry, Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
| | - Matthew B. Francis
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratories, Berkeley, California 94720, United States
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23
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Affiliation(s)
- Ariel L. Furst
- Department of Chemistry, University of California, Berkeley, California 94720-1460, United States
| | - Matthew B. Francis
- Department of Chemistry, University of California, Berkeley, California 94720-1460, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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24
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Furst A, Smith MJ, Lee MC, Francis MB. DNA Hybridization To Interface Current-Producing Cells with Electrode Surfaces. ACS CENTRAL SCIENCE 2018; 4:880-884. [PMID: 30062116 PMCID: PMC6062829 DOI: 10.1021/acscentsci.8b00255] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Indexed: 05/23/2023]
Abstract
As fossil fuels are increasingly linked to environmental damage, the development of renewable, affordable biological alternative fuels is vital. Shewanella oneidensis is often suggested as a potential component of bioelectrochemical cells because of its ability to act as an electron donor to metal surfaces. These microbes remain challenging to implement, though, due to inconsistency in biofilm formation on electrodes and therefore current generation. We have applied DNA hybridization-based cell adhesion to immobilize S. oneidensis on electrodes. High levels of current are reproducibly generated from these cell layers following only 30 min of immobilization without the need for the formation of a biofilm. Upon incorporation of DNA mismatches in the microbe immobilization sequence, significant attenuation in current production is observed, suggesting that at least part of the electron transfer to the electrode is DNA-mediated. This method of microbe assembly is rapid, reproducible, and facile for the production of anodes for biofuel cells.
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Affiliation(s)
- Ariel
L. Furst
- Department
of Chemistry, University of California,
Berkeley, Berkeley, California 94720-1460, United States
| | - Matthew J. Smith
- Department
of Chemistry, University of California,
Berkeley, Berkeley, California 94720-1460, United States
| | - Michael C. Lee
- Department
of Chemistry, University of California,
Berkeley, Berkeley, California 94720-1460, United States
| | - Matthew B. Francis
- Department
of Chemistry, University of California,
Berkeley, Berkeley, California 94720-1460, United States
- Materials
Sciences Division, Lawrence Berkeley National
Laboratories, Berkeley, California 94720-1460, United States
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25
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Furst AL, Smith MJ, Francis MB. New Techniques for the Generation and Analysis of Tailored Microbial Systems on Surfaces. Biochemistry 2018; 57:3017-3026. [DOI: 10.1021/acs.biochem.8b00324] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ariel L. Furst
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720-1460, United States
| | - Matthew J. Smith
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720-1460, United States
| | - Matthew B. Francis
- Department of Chemistry, University of California, Berkeley, Berkeley, California 94720-1460, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720-1460, United States
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26
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Chen D, Mei Y, Hu W, Li CM. Electrochemically enhanced antibody immobilization on polydopamine thin film for sensitive surface plasmon resonance immunoassay. Talanta 2018; 182:470-475. [DOI: 10.1016/j.talanta.2018.02.038] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 02/02/2018] [Accepted: 02/08/2018] [Indexed: 12/31/2022]
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27
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Rossetti M, Porchetta A. Allosterically regulated DNA-based switches: From design to bioanalytical applications. Anal Chim Acta 2018; 1012:30-41. [PMID: 29475471 DOI: 10.1016/j.aca.2017.12.046] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 12/10/2017] [Accepted: 12/28/2017] [Indexed: 02/07/2023]
Abstract
DNA-based switches are structure-switching biomolecules widely employed in different bioanalytical applications. Of particular interest are DNA-based switches whose activity is regulated through the use of allostery. Allostery is a naturally occurring mechanism in which ligand binding induces the modulation and fine control of a connected biomolecule function as a consequence of changes in concentration of the effector. Through this general mechanism, many different allosteric DNA-based switches able to respond in a highly controlled way at the presence of a specific molecular effector have been engineered. Here, we discuss how to design allosterically regulated DNA-based switches and their applications in the field of molecular sensing, diagnostic and drug release.
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Affiliation(s)
- Marianna Rossetti
- Chemistry Department, University of Rome, Tor Vergata, Via della Ricerca Scientifica, 00133, Rome, Italy
| | - Alessandro Porchetta
- Chemistry Department, University of Rome, Tor Vergata, Via della Ricerca Scientifica, 00133, Rome, Italy.
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